The Arabian mate
A rook standing next to a king it should not survive standing next to, and a knight two squares away doing both of the jobs that make it safe.
- 20 positions in the course match this pattern
- Lichess rating 525–2322
- Section: Checkmate Patterns
- Every line verified by the app’s rules engine
The pattern
The king is in a corner, so it starts with three squares instead of five. The rook comes to the square beside it -- h7 against a king on h8 -- and checks along the rank or the file. Standing there is normally suicide, because the king takes the rook.
The knight is what makes it legal. Standing a knight's move from the king, it defends the rook so the king cannot take it, and it covers the king's other square at the same time. Against a king on h8 the knight is on f6 and the rook comes to either h7 or g8; whichever one it takes, the knight is already covering the other. Two jobs, one piece, and nothing else needed anywhere on the board.
That double duty is why this mate turns up in endgames with almost nothing left. A rook and a knight against a lone king in a corner is a mate; a rook and a bishop in the same place is not, because a bishop can only ever defend the rook or cover the escape square, never both.
What is always true
Each line below was tested against all 20 positions in this course that show the pattern, using the same rules engine the trainer runs on. The build stops if any of them is ever false, so the count beside each one is the real count.
- The mated king is in a corner of the board 20/20
- The checking piece is a rook 20/20
- That rook stands on a square adjacent to the king 20/20
- A knight defends the rook 20/20
- Exactly one knight is involved in the mate 20/20
How to spot it
- An enemy king already in a corner, or one move from being driven there.
- A knight within reach of the square a knight's move from the corner: f6 against a king on h8, c3 against a king on a1.
- A rook or a route for one to the square beside the king. It does not need to be safe by itself, it needs to be defended by the knight.
- In the middlegame, a defender whose own pawn on h7 or g7 has already closed off the king's own escape squares for you.
4 positions to solve
Real games, easiest first. The amber squares are the move your opponent has just played, not the answer. Work it out before you open the solution; the second diagram inside each answer is the finished mate with the trapped king outlined.
Position 1
White to move. Force the mate.
Show the answer
34...Nxh7 35.Rxh7#
The black king on h8 is in check from the rook on h7, which the knight on f6 defends. It has three squares to try and none of them work: g8 is covered by the knight on f6; g7 is covered by the rook on h7; the rook on h7 cannot be taken, because the knight on f6 defends it.
The position comes from an endgame of a real game, rated 525 in the Lichess pool and scored there as mate in one. The amber squares on the first diagram are the move your opponent had just played.
Position 2
White to move. Force the mate.
Show the answer
38...Ne5 39.Bg7+ Rxg7 40.Rh6+ Rh7 41.Rxh7#
The black king on h8 is in check from the rook on h7, which the knight on f6 defends. It has three squares to try and none of them work: g8 is covered by the knight on f6; g7 is covered by the rook on h7; the rook on h7 cannot be taken, because the knight on f6 defends it.
The position comes from an endgame of a real game, rated 1339 in the Lichess pool and scored there as mate in three. The amber squares on the first diagram are the move your opponent had just played.
Position 3
Black to move. Force the mate.
Show the answer
41.d8=Q 41...Rf2+ 42.Kg1 42...Nf3+ 43.Kh1 43...Rxh2#
The white king on h1 is in check from the rook on h2, which the knight on f3 defends. It has three squares to try and none of them work: g1 is covered by the knight on f3; g2 is covered by the rook on h2; the rook on h2 cannot be taken, because the knight on f3 defends it.
The position comes from an endgame of a real game, rated 1721 in the Lichess pool and scored there as mate in three. The amber squares on the first diagram are the move your opponent had just played.
Position 4
White to move. Force the mate.
Show the answer
37...a1=Q 38.Rg8+ Kxg8 39.Nf6+ Kh8 40.Rh7#
The black king on h8 is in check from the rook on h7, which the knight on f6 defends. It has three squares to try and none of them work: g8 is covered by the knight on f6; g7 is covered by the rook on h7; the rook on h7 cannot be taken, because the knight on f6 defends it.
The position comes from an endgame of a real game, rated 2322 in the Lichess pool and scored there as mate in three. The amber squares on the first diagram are the move your opponent had just played.
Where the name comes from
The name points back to shatranj, the medieval Arabic form of the game that European chess grew out of. Shatranj had no modern queen and no modern bishop: the piece on the queen's square moved one square diagonally, and the piece on the bishop's square jumped exactly two. That left the rook and the knight as by far the strongest pieces on the board, and the mating patterns built from that pair are the ones the earliest surviving chess writing is full of.
Easy to confuse with
These are the patterns Arabian Mate gets mistaken for. The difference is usually one piece or one square.
- Anastasia's MateKnight and rook, king on the edge file
- Corner MateKnight gives the check, a rook covers the rest
- Hook MateRook, knight and pawn in a chain
Questions people ask
What is the Arabian mate?
A checkmate against a king in the corner, delivered by a rook on the square next to it and defended by a knight that simultaneously covers the king's last flight square. It needs only those two pieces.
Why is it called the Arabian mate?
Because it is the characteristic mate of shatranj, the medieval Arabic game. In shatranj the queen and bishop were far weaker than they are now, so rook and knight patterns dominated the literature.
Is the Arabian mate the same as the hook mate?
No. Both put a rook next to the king with a knight defending it, but the hook mate also needs a pawn, and its king is usually in the middle of the board rather than in a corner.
All the named mates
One page each, or the whole set as a single motif in the course. The rest of the tactics library is at every motif in the course.
- Anastasia's MateKnight and rook, king on the edge file
- Boden's MateTwo bishops on crossing diagonals
- Opera MateBack-rank rook with a bishop defending it
- Pillsbury's MateRook down the file, bishop on the long diagonal
- Morphy's MateBishop checks the corner, rook seals it
- Epaulette MateThe king's own pieces either side of it
- Dovetail MateQueen diagonally adjacent, king boxed by its own
- Swallowtail MateQueen in front, own pieces diagonally behind
- Hook MateRook, knight and pawn in a chain
- Kill Box MateRook adjacent, queen a knight's move away
- Corner MateKnight gives the check, a rook covers the rest
- Double Bishop MateTwo bishops on neighbouring diagonals